A cutter head assembly and an edge trimming device for a solar cell

Abstract

The present invention provides a cutter head assembly and an edge trimming device for a solar cell. The cutter head assembly includes an edge trimming beam, a cutter head, a driving member, and a stopping and aligning member. The cutter head is movably connected to the edge trimming beam; the driving member is used to drive the cutter head to move along the edge trimming beam in a first direction; the stopping and aligning member is connected to the edge trimming beam and can telescopically move relative to the edge trimming beam in a second direction, wherein the second direction is perpendicular to the first direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar cell processing, and more specifically, relates to a cutter head assembly and an edge trimming device for solar cells. Background Art

[0002] In the processing technology of solar cells, the edge of a solar cell assembly is usually cut by a cutter head assembly in an edge trimming device. However, with the continuous development of solar cell technology, the size of solar cell assemblies has gradually increased, and the cutting efficiency of related cutter head assemblies is relatively low. Summary of the Invention

[0003] In view of this, the present invention provides a cutter head assembly and an edge trimming device for solar cells to solve the technical problem of how to improve the edge trimming efficiency.

[0004] The technical solution of the present invention is realized as follows:

[0005] An embodiment of the present invention provides a cutter head assembly, including: a trimming beam; a trimming head movably connected to the trimming beam; and a driving member for driving the trimming head to move along the trimming beam in a first direction.

[0006] In some embodiments, the trimming head includes: a cutting tool holder; a blade detachably connected to the cutting tool holder; a cutting air cylinder for driving the cutting tool holder to move in a second direction perpendicular to the first direction; and a flexible connection mechanism connecting the cutting tool holder and the cutting air cylinder; wherein the flexible connection mechanism is telescopic in a third direction perpendicular to the plane formed by the first direction and the second direction.

[0007] In some embodiments, the trimming head further includes: an elastic connection assembly connected to the cutting tool holder; wherein the blade is provided with a limiting hole, and the elastic connection assembly can be connected to and disconnected from the limiting hole.

[0008] In some embodiments, the cutting tool holder is provided with a mounting hole; the elastic connection assembly includes: a shaft pin disposed in the mounting hole; an elastic member having one end abutted against the end face of the mounting hole and the other end opposite to the one end abutted against the shaft pin to drive the shaft pin to move in a direction towards the limiting hole; and a fork for driving the shaft pin to move away from the limiting hole.

[0009] In some embodiments, a through groove is provided on the cutting tool holder in the third direction, the blade is disposed in the groove, and the surface of the blade is flush with the end face of the groove.

[0010] In some embodiments, the trimming head further includes a limiting member disposed on an end surface of the groove and protruding toward an opening direction of the groove to define a position of the blade in a second direction of the groove.

[0011] In some embodiments, one end of the blade is provided as a cutting edge; the trimming head further includes a material guiding plate connected to the cutting tool holder and extending along a direction away from the cutting edge of the blade.

[0012] In some embodiments, the cutting edge is provided as an arc-shaped structure, and the arc-shaped structure is recessed in a direction opposite to the first direction.

[0013] In some embodiments, it further includes a stopping and rectifying member connected to the trimming beam and telescopable relative to the trimming beam in the second direction. An embodiment of the present invention further provides a trimming device for a solar cell, including a frame body; a transmission mechanism disposed in the frame body for transmitting materials in a first direction; a cutting mechanism movably connected to the frame body for cutting materials in a set area; a lifting mechanism disposed at the bottom of the cutting mechanism for moving and fixing the materials transmitted in the first direction in the set area; wherein, the cutting mechanism can be provided in multiple numbers, and the multiple cutting mechanisms are disposed around the set area; the cutting mechanism is provided with multiple knife head assemblies as described above.

[0014] In some embodiments, multiple transmission mechanisms are provided, and the transmission mechanisms are spaced apart in the first direction; wherein, the trimming device further includes an adjustment mechanism extending in the first direction and connected to the transmission mechanism for driving the transmission mechanism to move in the first direction.

[0015] In some embodiments, the lifting mechanism includes a fixed module provided with at least one row of fixed suction cups in the first direction; a movable module provided with at least multiple rows of movable suction cups in the first direction; wherein the fixed module and the movable module are alternately arranged in the first direction.

[0016] In some embodiments, the trimming device further includes a connecting mechanism connecting the adjustment mechanism and the movable module to drive the movable module to move when the transmission mechanism moves.

[0017] In some embodiments, the cutting mechanism is provided in four numbers, and the set area surrounded by the cutting mechanism is rectangular; wherein, the cutting mechanisms at both ends in the first direction are connected to the transmission mechanism to move in the first direction following the transmission mechanism.

[0018] An embodiment of the present invention provides a cutter head assembly and an edge trimming device for a solar cell. The cutter head assembly includes an edge trimming beam, a cutter head, and a driving member. The cutter head is movably connected to the edge trimming beam, and the driving member can drive the cutter head to move along the edge trimming beam. In the embodiment of the present invention, the edge trimming driving members and the cutter heads are in one-to-one correspondence, one driving member corresponds to one cutter head. When multiple cutter heads are provided on the cutter head assembly, each driving member can independently control the movement of one cutter head, and multiple cutter heads do not need to share one driving member, which shortens the waiting time of the cutter head and thus improves the driving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the first cutter head assembly according to an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of the second cutter head assembly according to an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of the first cutter head according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of the second cutter head according to an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of the third cutter head according to an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of the fourth cutter head according to an embodiment of the present invention;

[0025] Figure 7 is a schematic structural diagram of the cutter head in the first cutter head according to an embodiment of the present invention;

[0026] Figure 8 is a schematic cross-sectional view of the cutter head in the first cutter head according to an embodiment of the present invention;

[0027] Figure 9 is a schematic structural diagram of the edge trimming device for a solar cell according to an embodiment of the present invention;

[0028] Figure 10 is a top view of the edge trimming device for a solar cell according to an embodiment of the present invention;

[0029] Figure 11 is a schematic structural diagram of the adjustment mechanism according to an embodiment of the present invention;

[0030] Figure 12 is a schematic structural diagram of the lifting mechanism according to an embodiment of the present invention.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS:

[0032] 1. Tool head assembly; 1a. Short-side tool head assembly; 1b. Long-side tool head assembly; 11. Edge trimming beam; 12. Edge trimming head; 121. Cutting tool seat; 1211. Mounting hole; 1212. Groove; 122. Blade; 1221. Limit hole; 1222. Cutting edge; 123. Cutting cylinder; 124. Flexible connection mechanism; 125. Elastic connection assembly; 1251. Axle pin; 1252. Elastic member; 1253. Fork; 126. Limiting member; 127. Material guide plate; 13. Driving member; 14. Stopping and rectifying member; 2. Frame body; 3. Transmission mechanism; 4. Cutting mechanism; 5. Lifting mechanism; 51. Fixed module; 52. Movable module; 511. Fixed suction cup; 512. Movable suction cup; 6. Adjusting mechanism; 61. Servo motor; 62. Reducer; 63. Left-handed lead screw; 64. Right-handed lead screw; 65. Left-handed lead nut; 66. Right-handed lead nut; 67. Lead screw bearing tail seat; 68. Lead screw bearing seat; 7. Connection mechanism. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] In the various specific technical features described in the specific embodiments, they can be combined in any suitable manner without conflict. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination methods of the specific technical features in the present invention will not be described separately.

[0035] In the following descriptions, the terms "first / second / ..." involved are only used to distinguish different objects and do not indicate that there are the same or related relationships between the objects. It should be understood that the orientation descriptions "above", "below", "outside", and "inside" involved are all the orientations in the normal use state. The "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagram, which can be the left and right directions in the normal use state or not. The XYZ coordinate system is the absolute coordinate in the normal use state. The orientation description "positive direction" involved is the direction indicated by the arrow in the coordinate system, and the "negative direction" is the direction opposite to the direction indicated by the arrow in the coordinate system.

[0036] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising that element. "Plurality" means greater than or equal to two.

[0037] An embodiment of the present invention provides a cutter head assembly, which can be applied to the cutting process of various products such as battery assemblies and glass. It should be noted that the type of application scenario of the embodiment of the present invention does not limit the cutter head assembly of the embodiment of the present invention.

[0038] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides a cutter head assembly, which can be the short-side cutter head assembly 1a in Figure 1 or the long-side cutter head assembly 1b in Figure 2 . The positional relationship between the short-side cutter head assembly 1a and the long-side cutter head assembly 1b can be that the extension directions are perpendicular. Each cutter head assembly may include a trimming beam 11, a trimming head 12 and a driving member 13. Among them, the trimming beam 11 may be an elongated structure. It should be noted that the size of the extension direction of the trimming beam 11 in the embodiment of the present invention can be set according to different cutting specifications. Taking the cutter head assembly 1 for cutting rectangular solar cell wafers as an example, at least two groups of cutter head assemblies 1 can be set in the set area of the solar cell silicon wafer. As Figure 1 shown, one group is the short-side cutter head assembly 1a; as Figure 2 shown, the other group is the long-side cutter head assembly 1b. The length of the trimming beam 11 in the short-side cutter head assembly 1a can be less than the length of the trimming beam 11 in the long-side cutter head assembly 1b. The trimming head 12 is movably connected to the trimming beam 11, so that the trimming head 12 can move along the extension direction of the trimming beam 11 to cut the solar cell wafer in the set area. The short-side cutter head assembly 1a is used to cut the short side of the solar cell wafer, and the long-side cutter head assembly 1b can be used to cut the long side of the solar cell wafer.

[0039] The driving member 13 is used to drive the trimming head 12 to move in a first direction along the trimming beam 11. The above first direction is parallel to the length extension direction of the trimming beam 11. However, for different trimming heads, the direction of driving its movement in different states can be changed. That is to say, as Figure 1 or Figure 2As shown, the first direction can be the direction along the edge-trimmed beam 11 in the positive x direction or the direction along the edge-trimmed beam 11 in the negative x direction. In some embodiments, linear sliding rails can be arranged on the side surface of the edge-trimmed beam 11 such that the linear sliding rails extend along the extension direction of the edge-trimmed beam 11. The driving member 13 can be arranged at both ends of the edge-trimmed beam 11 in the length direction. The edge-trimming head 12 is installed on the slider, and a sliding friction pair is formed between the slider and the linear sliding rail to achieve a slidable connection between the edge-trimming head and the edge-trimmed beam. The driving member 13 can drive the edge-trimming head 12 to move along the linear sliding rail by means of a synchronous belt, a chain, etc.

[0040] In an embodiment of the present invention, a plurality of edge-trimming heads 12 and a plurality of driving members 13 can be arranged in one cutter head assembly, and the edge-trimming heads 12 and the driving members 13 are in one-to-one correspondence. For example, Figure 1 and Figure 2 In the embodiment shown, two edge-trimming heads 12 and two driving members 13 are arranged in the same cutter head assembly, wherein the driving members 13 are respectively arranged at both ends of the edge-trimmed beam 11. Each driving member 13 independently drives one edge-trimming head 12. For example, the driving member 13 arranged at Figure 1 the positive end of the x-axis shown is used to drive one edge-trimming head to move in the positive x-axis direction, and the driving member 13 arranged at the negative end of the x-axis is used to drive the other edge-trimming head to move in the negative x-axis direction.

[0041] The embodiment of the present invention provides a cutter head assembly, which includes an edge-trimmed beam, an edge-trimming head and a driving member. The edge-trimming head is movably connected to the edge-trimmed beam, and the driving member can drive the edge-trimming head to move along the edge-trimmed beam. In the embodiment of the present invention, the edge-trimming driving members and the edge-trimming heads are in one-to-one correspondence, one driving member corresponds to one edge-trimming head. When a plurality of edge-trimming heads are arranged on the cutter head assembly, each driving member can independently control the movement of one edge-trimming head, and the plurality of edge-trimming heads do not need to share one driving member, shortening the waiting time of the edge-trimming heads, thereby improving the driving efficiency.

[0042] In some embodiments, a plurality of edge-trimming heads and a plurality of driving members can be arranged in the same group of cutter head assemblies. For example, one driving member is arranged at each end of the edge-trimmed beam, and one driving member corresponds to driving a plurality of edge-trimming heads to move in the same direction. The initial positions of the plurality of edge-trimming heads on the edge-trimmed beam are arranged at intervals. When the driving member drives the plurality of edge-trimming heads to move synchronously, the plurality of edge-trimming heads start cutting the set area of the solar cell module from different initial positions, shortening the cutting stroke of each edge-trimming head, reducing the cutting time, and thereby improving the cutting efficiency.

[0043] In some embodiments, such as Figures 1-6As shown, the chamfering head 12 includes a cutting tool holder 121, a blade 122, a cutting cylinder 123 and a flexible connection mechanism 124. The blade 122 is detachably connected to the cutting tool holder 121. Removable means that the blade 122 can be connected to and disconnected from the cutting tool holder 121. The detachable connection methods in the embodiment of the present invention include but are not limited to clamping and threading. The cutting cylinder 123 is used to drive the cutting tool holder 121 to the second direction ( Figure 1 The second direction moves in the y direction as shown, wherein the second direction is perpendicular to the first direction. Figures 3-6 The chamfering head 12 can be used for chamfering in different directions, the difference being the direction in which the blade is arranged and the direction in which the guide trough is arranged.

[0044] The flexible connection mechanism 124 connects the cutting tool holder 121 and the cutting cylinder 123, wherein the flexible connection mechanism 124 is in the third direction ( Figure 1 The third direction is perpendicular to the plane formed by the first and second directions. The flexible connection mechanism 124 may include a linear bearing and a spring, so that the knife holder can move in the third direction.

[0045] It should be noted that the solar cell lamination process involves placing the pre-assembled cells into a laminator, vacuuming the assembly to remove the air, then heating the EVA to melt it and bonding the cells, glass, and backsheet together. Finally, the solar cell assembly is cooled and removed. During this process, uneven force applied to the backsheet and glass, uneven edges of the glass itself, or EVA overflowing onto the upper and lower edges of the glass can result in poor lamination, such as slightly wavy edges or a slightly warped corner of the assembly glass.

[0046] The flexible connection mechanism 124 in the embodiment of the present invention can be used to reduce the risk of blade wear during the cutting process caused by poor lamination. The cutting process of the cutter head assembly in the embodiment of the present invention is described below;

[0047] like Figures 1-8As shown, during the initial process of the solar cell module within the cutting setting area of the cutter head assembly, the trimming head 12 is at its initial position on the trimming beam 11. The cutting cylinder 123 drives the cutting tool holder 121 to extend in the positive direction of the second direction, thereby driving the blade 122 to move in the positive direction of the second direction until the cutting edge 1222 of the blade 122 contacts the edge of the solar cell module. The driving member 13 drives the trimming head 12 to move in the first direction, thereby driving the blade to cut the solar cell module in the first direction. During the cutting process, due to the unevenness of the solar cell module caused by poor lamination, the height of the surface where the blade contacts the solar cell module will change. For example, when the solar cell module protrudes relative to the blade in the third direction, during the cutting process of the blade in the first direction, the blade will also receive a thrust from the solar cell module acting on the blade in the third direction. The flexible connection mechanism 124 connects the cutting cylinder 123 and the cutting tool holder 121, and the flexible connection mechanism 124 can perform telescopic movement in the third direction. Therefore, when the blade receives a thrust in the third direction, the thrust will be transmitted to the flexible connection mechanism 124, causing the flexible connection mechanism 124 to compress in the third direction, reducing the impact on the blade caused by the uneven surface of the solar cell module, and thus reducing the wear of the blade. When the solar cell module is recessed relative to the blade in the third direction, under the action of the restoring force, the flexible connection mechanism 124 drives the blade to move towards the solar cell module, ensuring that the blade always contacts the surface of the solar cell module.

[0048] In the embodiment of the present invention, by setting the flexible connection mechanism, the blade can solve the problem of unevenness of the solar cell module caused by poor lamination process. It can not only keep the blade in contact with the surface of the solar cell module for cutting at all times, but also reduce the impact on the blade caused by the unevenness of the solar cell module, thereby extending the service life of the blade. At the same time, it also reduces the residue at the edge after cutting, improves the effect of subsequent processes such as framing, and reduces the risk of solar cell bursting due to residue in the module.

[0049] In some embodiments, such as Figure 7 and Figure 8As shown, the bevelled head 12 further includes an elastic connection component 125. The elastic connection component 125 is connected to the cutting tool holder 121. Among them, the blade 122 is provided with a limiting hole 1221, and the elastic connection component 125 can be connected to and disconnected from the limiting hole 1221. That is to say, when the elastic connection component 125 is arranged in the limiting hole 1221, the blade 122 and the cutting tool holder 121 are fixedly connected through the elastic connection component 125; when the elastic connection component 125 is disconnected from the limiting hole 1221, the blade 122 can move relative to the cutting tool holder 121. In the embodiment of the present invention, by connecting the blade and the cutting tool holder through the elastic connection component, the blade and the cutting tool holder are detachably connected, which improves the portability of disassembling and assembling the blade and the cutting tool holder, and shortens the time for blade maintenance and replacement.

[0050] In some embodiments, as Figure 7 and Figure 8 shown, the cutting tool holder 121 is provided with a mounting hole 1211; the elastic connection component 125 includes a shaft pin 1251, an elastic member 1252 and a fork 1253. The shaft pin 1251 is arranged in the mounting hole 1211. One end of the elastic member 1252 abuts against the end face of the mounting hole 1211, and the other end of the elastic member 1252 that abuts against the end face of the mounting hole 1211 abuts against the shaft pin 1251. It should be noted that the elastic member 1252 in the embodiment of the present invention can be a spring, a flexible object or other components with deformability and recoverable deformation. In the natural stretching state of the elastic member 1252, the elastic member 1252 presses the shaft pin 1251 to extend into the limiting hole 1221, so that the cutting tool holder 121 and the blade 122 are fixedly connected through the shaft pin 1251; under the action of an external force, the fork 1253 drives the elastic member 1252 to compress, so that the elastic member 1252 drives the shaft pin 1251 to leave the limiting hole 1221 to realize the disconnection between the blade 122 and the cutting tool holder 121. When the external force acting on the fork 1253 disappears, the elastic member 1252 recovers its deformation, and the elastic member 1252 that recovers its deformation will apply a recovery force on the shaft pin 1251, so that the shaft pin 1251 moves into the limiting hole 1221 again, and the blade 122 and the cutting tool holder 121 are restored to connection.

[0051] In some embodiments, as Figure 7 and Figure 8As shown, a through groove 1212 is provided on the cutting tool holder 121 in the third direction. The blade 122 is arranged in the groove 1212, and the surface of the blade 122 is flush with the end face of the groove 1212. In the embodiment of the present invention, by arranging the blade 122 in the groove 1212, the surface of the blade 122 is smoothly connected to the surface of the groove 1212, so that the blade 122 is limited in the first direction relative to the cutting tool holder 121, and the blade 122 is movable relative to the cutting tool holder 121 in the third direction. When the elastic connection assembly 125 is arranged in the limit hole 1221, the blade 122 and the cutting tool holder 121 are relatively fixed in the third direction; when the elastic connection assembly 125 is disengaged from the limit hole 1221, the blade 122 and the cutting tool holder 121 are movable in the third direction. Thereby, the stability of blade installation is improved.

[0052] In some embodiments, as Figure 7 and Figure 8 shown, the edge trimming head 12 further includes a limiting member 126. The limiting member 126 is arranged on the end face of the groove 1212. The end face of the groove 1212 refers to the end face of the opening end of the groove 1212 formed in the cutting tool holder 121. The limiting member 126 can be arranged on this end face to limit the position of the blade 122 in the second direction ( Figure 7 shown as the y direction). The limiting member 126 can protrude towards the opening direction of the groove 1212. Among them, as Figure 7 shown, the limiting member 126 can be set as a plurality of limiting screws. The limiting screws are fixedly connected to the cutting tool holder 121, and a region for inserting the blade 122 is defined between the plurality of limiting screws and the groove 1212; in some embodiments, the limiting member 126 can be integrally formed with the cutting tool holder 121, and the limiting member 126 can be a protruding part of the relative end face, directly forming a region for inserting the blade with the groove. In the embodiment of the present invention, by arranging the limiting member on the end face of the groove, the freedom of the blade relative to the groove in the second direction is limited, so that the blade can be more easily and quickly replaced relative to the cutting tool holder in the third direction, improving the efficiency of blade maintenance and replacement, and at the same time being beneficial to improving the connection stability between the blade and the cutting tool holder.

[0053] Referring to Figure 7 , the tool changing process of the tool head assembly will be described. In the case of tool changing, the fork 1253 can be pressed. The fork 1253 drives the pin 1251 to compress the elastic member 1252, so that the pin 1251 is withdrawn from the limit hole 1221 in the blade 122. Then, the new blade to be replaced is inserted along the groove 1212. While ejecting the old blade, the fork 1253 is released, and the pin 1251 is pushed into the limit hole 1221 of the new blade, that is, the tool changing is completed.

[0054] In some embodiments, as Figure 7 and Figure 8As shown, one end of the blade 122 is provided as a cutting edge 1222; the trimming head 12 further includes a material guide plate 127. The material guide plate 127 is connected to the cutting tool holder 121 and extends along the direction away from the cutting edge 1222 of the blade 122. In the embodiment of the present invention, the material guide plate 127 is used to export the waste cut on one side of the cutting edge 1222, thereby reducing the wear of the blade and the solar cell caused by the accumulation of waste at the blade. Among them, Figures 3-6 The position of the material guide plate shown in the four embodiments is related to the position of the tool head assembly.

[0055] In some embodiments, such as Figure 7 As shown, the cutting edge 1222 is provided as an arc structure, and the arc structure is recessed in the direction opposite to the first direction. Figure 7 The cutting edge shown in can be generally regarded as a "C"-shaped structure, and the opening of the "C"-shaped structure faces away from the blade. By setting the cutting edge as an arc structure in the embodiment of the present invention, the contact area between the cutting edge and the solar cell is increased, and the upper and lower cutting edges of the blade can evenly contact the edge of the solar cell, improving the neatness of edge cutting and extending the service life of the blade.

[0056] In some embodiments, such as Figure 2 As shown, the tool head assembly further includes a stopping and centering member 14. The stopping and centering member 14 is connected to the trimming beam 11 and can telescopically move relative to the trimming beam 11 in the second direction ( Figure 1 The y direction shown). In some embodiments, the stopping and centering member can telescopically move relative to the trimming beam at a 45-degree angle between the z-axis and the y-axis shown in Figure 1 to achieve displacement of the stopping and centering member in both the vertical and horizontal directions. By providing the stopping and centering member in the tool head assembly in the embodiment of the present invention, it is to position and center the solar cell module to be cut. For example, during the process of transporting the solar cell module to the preset area where the tool head assembly is located through the transmission mechanism, the solar cell module has a certain initial velocity. Therefore, by providing the stopping and centering member on the tool head assembly, it can block the continuous movement of the solar cell module and keep the solar cell module at the set area for subsequent cutting operations. At the same time, the stopping and centering member can also be used to achieve secondary adjustment of the position of the solar cell module within the set area, which is beneficial to the precise cutting of the solar cell module by the tool head assembly.

[0057] In some embodiments, the stopping and rectifying member can be set as a stopping cylinder and a stopping roller. The stopping roller is connected to the stopping cylinder, and the stopping cylinder can drive the stopping roller to move back and forth. Among them, the stopping cylinder can be arranged on the long-edge cutter head assembly 1b. When the long-edge cutter head assembly 1b is perpendicular to the transmission direction of the solar cell assembly, the stopping cylinder arranged on the long-edge cutter head assembly 1b can drive the stopping roller to extend out to block the solar cell assembly moving in the second direction and make the solar cell assembly stop moving. Thereby, the solar cell assembly is roughly located within the set area to be cut in the second direction.

[0058] In some embodiments, two long-edge cutter head assemblies 1b can be arranged in the edge trimming device for solar cells to simultaneously cut the two edges of the solar cell assembly in the first direction. The stopping and rectifying member only needs to be arranged on one of the long-edge cutter head assemblies 1b. As shown in Figure 10 Assuming that the edge trimming device transports the solar cell assembly from right to left, then the stopping and rectifying member only needs to be arranged on the left long-edge cutter head assembly 1b. When one end on the left side of the solar cell assembly moves to the left long-edge cutter head assembly 1b, the stopping cylinder drives the stopping roller to extend out, thereby blocking the solar cell assembly from continuing to move leftward.

[0059] In some embodiments, as shown in Figure 1 The stopping and rectifying member can be set as a rectifying cylinder and a rectifying roller. The rectifying cylinder can be arranged on the short-edge cutter head assembly 1a, and the rectifying cylinder can drive the rectifying roller to move along the first direction ( Figure 10 The left-right direction shown in the figure). In some embodiments, two short-edge cutter head assemblies 1a can be arranged at intervals in the first direction in the edge trimming device for solar cells to simultaneously cut the two edges of the solar cell assembly in the first direction. Two rectifying cylinders are arranged, and the two rectifying cylinders are respectively arranged on the two short-edge cutter head assemblies 1a. When the solar cell assembly moves into the set area, the two rectifying cylinders respectively drive the rectifying rollers to extend to the limit position along the first direction and limit the solar cell assembly within the set area between the two rectifying rollers in the first direction to achieve the symmetrical axis setting of the solar cell assembly with the short-edge cutter head assembly 1a, thereby realizing the rectification of the solar cell assembly in the set area, which is beneficial to the precise cutting of the solar cell assembly by the short-edge cutter head assembly 1a.

[0060] As shown in Figure 9 and Figure 10 shown, an embodiment of the present invention also provides an edge trimming device for solar cells. The edge trimming device includes a frame 2, a transmission mechanism 3, a cutting mechanism 4, and a lifting mechanism 5. The frame 2 is the mounting frame of the edge trimming device. In some embodiments, a cover plate is provided outside the frame 2 and inlaid around the frame 2. The transmission mechanism 3 is arranged inside the frame 2. The transmission mechanism 3 is used to move in the second direction ( Figure 9The materials cut by the conveyor belt in the y direction (as shown) or the cut materials. In some embodiments, the conveying mechanism 3 can be connected to the frame 2 through a guide rail slider. Multiple rows of conveying mechanisms 3 can be arranged in the same frame 2. Among them, the conveying mechanisms 3 at both ends in the first direction can slide relative to the frame 2.

[0061] The cutting mechanism 4 is movably connected to the frame 2 and is used to cut the materials in a set area. Among them, multiple cutting mechanisms 4 can be provided, and the multiple cutting mechanisms 4 are arranged around the set area. The cutting mechanism 4 is provided with multiple cutter head assemblies 1 as described in any of the above embodiments. The lifting mechanism 5 is arranged at the bottom of the cutting mechanism 4 and is used to move and fix the materials conveyed in the second direction in the set area.

[0062] In the embodiment of the present invention, by providing multiple cutting mechanisms and arranging the multiple cutting structures around the set area, each cutting mechanism can independently cut one side of the corresponding material, and each cutting mechanism is provided with multiple cutter head assemblies, and the multiple cutter head assemblies can cut the same side of the material simultaneously, thereby improving the efficiency of material cutting.

[0063] In some embodiments, such as Figure 9 and Figure 10 、 Figure 11 As shown, multiple conveying mechanisms 3 are provided, and the conveying mechanisms 3 are arranged at intervals in the first direction ( Figure 9 the x direction as shown). Among them, the edge trimming device further includes an adjustment mechanism 6. The adjustment mechanism 6 extends along the first direction, and the adjustment mechanism 6 is connected to the conveying mechanism 3 and is used to drive the conveying mechanism 3 to move in the second direction. It should be noted that in the embodiment of the present invention, the conveying mechanisms 3 are arranged at intervals in the first direction, and the size of the material is relatively larger than the spacing between the arranged conveying mechanisms 3. Then, the multiple conveying mechanisms 3 can contact different parts of the same material, so as to realize the stable supporting effect of the multiple conveying mechanisms 3 on the same material. In the embodiment of the present invention, the rotation of the conveying mechanism 3 drives the material to move in the second direction. In the embodiment of the present invention, the adjustment mechanism 6 is used to adjust the positions of the multiple conveying mechanisms 3 in the first direction to realize the adjustment of the spacing between the multiple conveying mechanisms 3 in the first direction, so that the multiple conveying mechanisms 3 can adapt to materials of different specifications and sizes, and further improve the functional diversity of the edge trimming device.

[0064] In some embodiments, such as Figure 11As shown, the adjustment mechanism 6 includes: a servo motor 61, a speed reducer 62, a left-handed lead screw 63, a right-handed lead screw 64, a left-handed nut 65, a right-handed nut 66, a lead screw bearing tailstock 67, and a lead screw bearing housing 68; the servo motor 61 is fixedly connected to the speed reducer 62, the speed reducer 62 can be fixedly connected to the frame body 2, and at the same time, the speed reducer 62 is respectively connected to the left-handed lead screw 63 and the right-handed lead screw 64 through couplings. The left-handed lead screw 63 and the left-handed nut 65 are fitted and installed on the lead screw bearing tailstock 67 and the lead screw bearing housing 68, and the right-handed lead screw 64 and the right-handed nut 66 are fitted and installed on the lead screw bearing tailstock 67 and the lead screw bearing housing 68. The lead screw bearing tailstock 67 and the lead screw bearing housing 68 are respectively installed on the frame body 2; the left-handed nut 65 and the right-handed nut 66 are respectively fixedly connected to the transmission mechanism 3.

[0065] In some embodiments, as Figure 12 shown, the jacking mechanism 5 includes a fixed module 51 and a movable module 52. The fixed module 51 is provided with at least one row of fixed suction cups 511 along the first direction ( Figure 12 shown as the x direction). The movable module 52 is provided with at least multiple rows of movable suction cups 512 along the first direction. Among them, the fixed module 51 and the movable module 52 are alternately arranged in the first direction.

[0066] As Figure 12 shown, the jacking mechanism 5 includes a suction cup lifting base frame body, a linear servo electric cylinder, a left and right adjustment suction cup seat, a lifting link mechanism, and an assisting lifting cylinder mechanism; wherein the rear seat of the linear servo electric cylinder is connected to the frame body 2, the cylinder rod of the linear servo electric cylinder is connected to the lifting link mechanism, the lower bearing of the lifting link mechanism is fixedly connected to the suction cup lifting base frame body, and the upper bearing is fixedly connected to the left and right adjustment suction cup seat. The linear servo electric cylinder pushes the lifting link mechanism to make the link swing. The lifting link mechanism is connected to the left and right adjustment suction cup seat, and the link swing makes the suction cup structure move in an arc in the vertical direction. The lower hinge seat of the assisting lifting cylinder mechanism is fixedly connected to the suction cup lifting base frame body, and the upper hinge seat is fixedly connected to the left and right adjustment suction cup seat, thereby pushing the left and right adjustment suction cup seat to move, and further reducing the load of the linear servo electric cylinder; the left and right adjustment suction cup seat is composed of a movable module 52 that can move in the first direction and an intermediate fixed module 51.

[0067] In some embodiments, as Figures 9-11As shown, the edge trimming device further includes a connecting mechanism 7. The connecting mechanism 7 connects the adjusting mechanism 6 and the movable module 52 to drive the movable module to move when the transmission mechanism 3 moves. The short-edge cutter head assemblies 1a and the long-edge cutter head assemblies 1b are connected and installed on the frame body 2 through a guide rail slider pair. The left and right short-edge cutter head assemblies 1a are respectively fixedly connected to the left and right discharge channels of the transmission mechanism 3. The short-edge cutter head assemblies 1a drive the left and right two discharge channels of the transmission mechanism 3 to adjust their positions through the left-handed screw nut 65 and the right-handed screw nut 66, driving the short-edge cutter head assemblies 1a fixedly connected to the left and right two discharge channels of the transmission mechanism 3. At the same time, through the connecting mechanism 7, the left and right two discharge channels are connected to the movable module 52 that moves left and right, so that the movable module 52 that moves left and right is adjusted to the size position corresponding to the new material specification.

[0068] In some embodiments, four cutting mechanisms 4 are provided, and the set area surrounded by the cutting mechanisms is a rectangle; wherein, the cutting mechanisms at both ends in the first direction are connected to the transmission mechanism to move in the first direction following the transmission mechanism.

[0069] Figure 1 and Figure 3 As shown, the following describes the edge trimming process of the short edge of the solar cell by the short-edge cutter head assembly 1a:

[0070] The short-edge cutter head assembly 1a includes: a first driving member, a second driving member provided at both ends of the edge trimming beam, as well as a first edge trimming head and a second edge trimming head. The first driving member can drive the first edge trimming head to move in the first direction, and the second driving member can drive the second edge trimming head to move in the second direction. Figure 1 The first edge trimming head shown is located on the left side of the second edge trimming head, and the positive direction of the first direction is Figure 1 the direction along the x-axis to the left in. Wherein, when the solar cell reaches the set area, the cutting cylinders 123 in the two edge trimming heads 12 extend, causing the cutting edges 1222 on the blades 122 to contact the edge of the solar cell. Both the first driving member and the second driving member drive the edge trimming heads to move from the initial position in the positive direction of the first direction, so that the first edge trimming head and the second edge trimming head cut the solar cell module together. When the second edge trimming head drives the blade to move to a distance of 5 - 50 mm beyond the cutting inlet of the initial position of the first edge trimming head, the first driving member drives the first edge trimming head to continue cutting in the positive direction of the first direction (to the left along the x-axis) to the end of the stroke. During this process, the second edge trimming head changes the direction of movement, and the second driving member drives the second edge trimming head to cut in the negative direction of the first direction (to the right along the x-axis) to the end of the stroke. When both the first edge trimming head and the second edge trimming head cut to the end of the stroke, the blades of the two edge trimming heads completely extend beyond the edge of the solar cell module, and the straight-edge sharp corners on the side of the blade relatively far from the cutting edge will scrape off the residues on the solar cell module; then the two driving members respectively drive the two edge trimming heads back to the initial position.

[0071] As described above, it is only the preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention.

Claims

1. An edge trimming device for a solar cell, characterized in that, Comprising: Frame body; A transmission mechanism, arranged inside the frame body, for transmitting materials in a first direction; A cutting mechanism, movably connected to the frame body, for cutting materials within a set area; A jacking mechanism, arranged at the bottom of the cutting mechanism, for moving and fixing the materials transmitted in the first direction within the set area; Wherein, a plurality of the cutting mechanisms are provided, and the plurality of the cutting mechanisms are arranged around the set area; the cutting mechanism is provided with a plurality of cutter head assemblies; the cutter head assembly includes: Edge trimming beam; An edge trimming head, movably connected to the edge trimming beam; A driving member, for driving the edge trimming head to move along the edge trimming beam in the first direction; The edge trimming head includes: A cutting tool holder; A cutting blade, detachably connected to the cutting tool holder; A cutting cylinder, for driving the cutting tool holder to move in a second direction, the second direction being perpendicular to the first direction; A flexible connection mechanism, connecting the cutting tool holder and the cutting cylinder; wherein, the flexible connection mechanism is telescopic in a third direction, the third direction being perpendicular to the plane formed by the first direction and the second direction; the flexible connection mechanism includes a linear bearing and a spring that cooperate with each other, so that the cutting tool holder can move in the third direction; The jacking mechanism includes a sucker lifting base frame body, a linear servo electric cylinder, a left - right adjustment sucker seat and a lifting link mechanism. The rear seat of the linear servo electric cylinder is connected to the frame body, the cylinder rod of the linear servo electric cylinder is connected to the lifting link mechanism, the lower bearing of the lifting link mechanism is fixedly connected to the sucker lifting base frame body, the upper bearing of the lifting link mechanism is fixedly connected to the left - right adjustment sucker seat, and the linear servo electric cylinder pushes the lifting link mechanism, causing the link of the lifting link mechanism to swing, so that the left - right adjustment sucker seat makes an arc motion in the vertical direction.

2. The edge trimming device according to claim 1, wherein The edge trimming head further includes: An elastic connection assembly, connected to the cutting tool holder; Wherein, the cutting blade is provided with a limiting hole, and the elastic connection assembly can be connected to and disconnected from the limiting hole.

3. The edge trimming device according to claim 2, wherein, The cutting tool holder is provided with a mounting hole; the elastic connection assembly includes: A shaft pin, arranged in the mounting hole; An elastic member, one end of which abuts against the end face of the mounting hole, and the other end opposite to the one end abuts against the shaft pin, to drive the shaft pin to move towards the direction of the limiting hole; A fork, which can drive the shaft pin to move away from the limiting hole.

4. The edge trimming device according to claim 1, characterized in that, A through - groove is provided on the cutting tool holder in the third direction, the cutting blade is arranged in the groove, and the surface of the cutting blade is flush with the end face of the groove.

5. The trimming device according to claim 4, characterized in that The edge trimming head further includes: A limiting member, arranged at the end face of the groove and protruding towards the opening direction of the groove, to limit the position of the cutting blade in the second direction of the groove.

6. The edge trimming device according to claim 1, characterized in that, One end of the cutting blade is set as a cutting edge; the edge trimming head further includes: A material guiding plate, connected to the cutting tool holder and extending along the direction away from the cutting edge of the cutting blade.

7. The edge trimming device according to claim 6, characterized in that, The cutting edge is set as an arc structure, and the arc structure is recessed in the direction opposite to the first direction.

8. The edge trimming device according to claim 1, characterized in that, Also included: The stop and alignment member is connected to the edge trimming beam and can be telescoped relative to the edge trimming beam in the second direction.

9. The edge trimming device according to claim 1, characterized in that, A plurality of the transmission mechanisms are provided, and the transmission mechanisms are spaced apart in the first direction; Wherein, the edge trimming device further includes: An adjustment mechanism extending in the first direction and connected to the transmission mechanism for driving the transmission mechanism to move in the first direction.

10. The edge trimming device according to claim 9, characterized in that, The left and right adjustment suction cup bases include: A fixed module provided with at least one row of fixed suction cups in the first direction; A movable module provided with at least multiple rows of movable suction cups in the first direction; Wherein the fixed module and the movable module are alternately arranged in the first direction.

11. The edge trimming device according to claim 10, characterized in that, The edge trimming device further includes: A connecting mechanism connecting the adjustment mechanism and the movable module to drive the movable module to move when the transmission mechanism moves.

12. The trimming device according to claim 9, wherein, Four cutting mechanisms are provided, and the set area enclosed by the cutting mechanisms is rectangular; wherein, the cutting mechanisms at both ends in the first direction are connected to the transmission mechanism to move in the first direction following the transmission mechanism.

Images